物理实验器材的功能和用途不是单一的。教学中要注意培养学生用一种仪器测多个物理量(或同一器材的不同用途),这对提高学生素质和能力非常重要。下面以量筒为例,具体加以说明。同学们知道:量筒(或量杯)是用来测量液体体积的工具,但大家是否知道巧用量筒测其他的物理量呢?现举例 The function and use of physics experiment equipment is not single. Teaching should pay attention to train students to use a device to measure multiple physical quantities (or different uses of the same device), which is very important to improve the quality and ability of students. The following example uses a graduated cylinder as an example. The students know that the measuring cylinder (or measuring cup) is a tool for measuring the volume of the liquid, but does everyone know how to use the cylinder to measure other physical quantities?